2021 UJ4

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.2614206000 ± 2.00e+00
Semi-major axis (a)1.3440235000 AU ± 3.00e+00
Inclination (i)24.62184000° ± 4.00e+00
Long. of Asc. Node (Ω)213.53629000° ± 5.00e+00
Arg. of Perihelion (ω)229.97759000° ± 6.00e+00
Mean Anomaly (M)191.43254000°
Mean Motion (n)0.6325484600°/day ± 2.12e+00
Perihelion dist (q)0.99266810 AU ± 3.48e+00
Aphelion dist (Q)1.69537890 AU ± 4.64e+00
Orbital Period1.55815370 yr ± 5.22e+00
Physical Parameters
H (abs. magnitude)24.99
G (slope)0.15
Orbit Solution
SourceMPC
Solution Date
RMS Residual0.640″
Uncertainty8
Orbit TypeApollo
MOID0.071615 AU
Observations Used13
Oppositions1
Arc Total
First Observation Used
Last Observation Used2021-10-30
Observations (14)
Date Type RA Dec Mag Band Observatory
2021-10-28 09:33:33 C 03 57 50.85 +01 46 10.3 V G96
2021-10-28 09:40:56 C 03 57 52.57 +01 44 22.9 V G96
2021-10-29 09:00:36 C 04 04 04.44 -03 57 08.7 V G96
2021-10-29 09:17:02 C 04 04 08.40 -04 01 09.9 V G96
2021-10-29 09:32:14 C 04 04 12.02 -04 04 54.5 V G96
2021-10-29 09:51:03 C 04 04 16.07 -04 09 31.5 V H01
2021-10-29 09:58:31 C 04 04 17.85 -04 11 21.1 V H01
2021-10-29 10:13:56 C 04 04 21.55 -04 15 07.0 V H01
2021-10-29 10:30:50 C 04 04 25.61 -04 19 15.0 V H01
2021-10-29 11:21:15 C 04 04 38.10 -04 31 31.2 V I52
2021-10-29 11:23:04 C 04 04 38.54 -04 31 58.1 V I52
2021-10-30 08:05:20 C 04 10 13.61 -09 34 12.1 V I52
2021-10-30 08:07:07 C 04 10 13.99 -09 34 38.0 V I52
2021-10-30 08:08:53 C 04 10 14.43 -09 35 04.0 V I52